Oh, yes, Miss Lillian can help you on that. Scroll back through the projects, she has made several and posted them.;)
Another version is two placemats and make button holes at one end of each and use a wooden spoon handle laced thru to hold them together after inserting dish and put handles with grosgrain or similar on the two long edges to carry it. This works also.
Just checked the site mentioned and it looks like what I was talking about. Very nice too.
This is the link to lbrow's project she posted a while back. Hope this helps.
It is two placemats that we buy at a store and sew three sides together after we embroider on the top one. We leave one side open so we can slide in a 9x13 inch casserole dish in. and thats all i know about it lol use velcro to secure the dish from coming out
You are right. Lillian, or lbrow, made several of them. Try to PM her and I bet she'd be glad to tell you how she did them.
I think lbrow made one but I could be wrong. :) Hopefully she will see your post.
I have seen one but a poor memory here...someone will come along and help you.